Boiler-cleaner.



NiTnD STATES GEORGE W. DAMMANN, OF ATHENS, ILLINOIS.

BOILER-CLEAN ER.

SPECIFICATION forming part of Letters Patent No. 662,524, dated November27, 1900.

Application filed Febrnaryti, 1900. Serial No. 4,261. (No model.)

To all whom it may concern.-

Be it known that I, GEORGE W. DAMMANN, a citizen of the United States,residing at Athens, in the county of Menard and State of Illinois, haveinvented certain new and useful Improvements in Boiler-Cleaners, ofwhich the following is such a full, clear, and exact description as willenable others skilled in the art to which it appertains to make and usethe same.

My invention relates to boiler-cleaners of that class in which thesteampressure within the boiler is utilized 'to remove from the boilerthe sediment accumulated therein by blowing out the same through asuitable blow-off pipe.

The purposes of my invention'are toprovide a boiler-cleaner soconstructed and arranged as to remove simultaneously from differentparts of the boiler-surface the sedimentaccumulated thereon, to providesimple and effective means to guide the sediment into the blow-off pipe,to provide means of improved construction for supporting the boiler-cleaner within the boiler, to provide a boiler-cleaner having amultiplicity of branches, and to provide means whereby one branch ormember of the boiler-cleaner may be operated independently of the otherbranch or branches thereof.

With these ends in View my invention consists of the novel features ofconstruction and combinations of parts shown in the annexed drawings, towhich reference is hereby made.

Referring to the drawings, Figure 1 is a side elevation of the completeboiler-cleaner in position in a boiler, only so much of the boiler beingshown in sectional view as is necessary to illustrate the connection ofthe boiler-cleaner therewith. Fig. 2 is a vertical longitudinal sectionthrough the boilercleaner. Fig. 3 is an enlarged detached perspectiveView of one of the induction-plates. Fig. 4 is an enlarged verticallongitudinal section through one of the supports on the line 4 4: of Fig1.

Similar letters of reference designate like parts in all of the views.

The boiler-cleaner may be applied to and used with any of the types ofboilers in common use.

In the drawings I have illustrated a boilercleaner having two branchesparallel to the lower surface of the boiler and having twoinduction-plates; but the boiler-cleaner may be constructed with asingle outlet-pipe and a single induction-plate or three or more pipeshaving corresponding induction-plates may be used without departing frommy invention or sacrificing any of the advantages thereof.

The boiler-cleaner in its preferable form consists of two paralleloutlet-pipes A, one above the other, as shown. Nipples I; extend throughthe boiler-head C and through a reinforcing-plate D, which is suitablysecured to the boiler-head. Pipes A and A screw into the body ofglobe-valves E. OouplingsF connect the pipes A and A with the nipples B,and one of the couplings binds on the inner surface of the boiler-headand the other coupling binds on the outer surface of thereinforcing-plate D, so as to form a steamtight connection of the pipeswith the boiler. The induction-plates G are cylindrical for a part oftheir length and have a reduced screwthreaded part 9 and a broadened andslightlyconcaved forward part g integral with the bodyoft-heinduction-plate. Screw-couplings G connect the induction-plates Gwith the pipes A. An elbow A screws onto the outer extremity of theupper pipe A A T-coupling A screws onto the outer end of the lower pipe.A pipe A screws into the lower end of the elbow A and into the upper endof the T-coupling A. A blow-off pipe A screws into the lower end of theT-coupling A.

Rectangular plates H, having their upper surfaces shaped to conform tothe inner sur' face of the boiler-shell, are suitably secured to theboiler-shell. Rings H 'fit loosely around the pipe A, and rods 11 screwinto the plates H and into the rings H and serve to support the pipes Awithin the boiler, so as to prevent accidental displacement thereof, butso as to permit longitudinal movement of the pipes due to thecontraction or expansion of the pipes.

It will be observed that the supports de scribed support the pipe fromthe upper part of the boiler-shell. There is practicaladvantage in thussupporting the pipes, because if the supports were placed on the lowersurface of the boiler-shell contiguous to the fire-surface they wouldinterfere with water circulathe induction-plates arrest the upwardmovement of the sediment and guide the sediment into the pipes A.

There is practical advantage in employing a multiplicity of pipes andinduction-plates in that the operation of the boiler-cleaner may by thismeans be localized and made more effective and also in that those partsof the boiler which are most subject to fouling-for example, the sheetswhich are directly over the fire-boxmay be cleaned expeditiously andWith the least waste of steam and water.

In case a boiler-cleaner having two induction-plates, as shown, is usedone of the induction-plates is preferably placed directly over thefire-box and the other over that part of the boiler immediately behindthe fire-wall.

By employing two valves E either one of the pipes A may be usedindependently of the other, or both may be used together, as occasionmay require.

In practical operation the valve or valves E are opened, permitting theescape of steam through the pipes A and A to the atmosphere, thusagitating the water in the boiler and stirring up the sediment under theinduction-plates and causing it to rise into contact with the plates, bywhich it is guided into the pipes A and is thence blown out through thepipe A After cleansing the boiler, as described, the valves E are againclosed.

Having fully described my'invention, what I claim as new, and desire tosecure by Letters Patent, is v 1. In a boiler-cleaner, the combinationof a reinforcing-plate secured to the boiler-head, nipples passingthrough the boiler-head and through said plate, couplings at the ends ofsaid nipples abutting against the boiler-head and saidreinforcing-plate, pipes screwing into the couplings inside of theboiler, curved induction-plates, and screw-couplings connecting saidinduction-plates with said pipes, as set forth.

2. In a boiler-cleaner, the combination of nipples passing through theboiler-head and through a reinforcing-plate secured thereon, couplingsscrewing onto said nipples and abutting against the boiler-head andagainst said reinforcing-plates, pipes screwing into the couplingswithin the boiler, induction plates connected with said pipes, pipesscrewing into the couplings external to the boiler and having a commonoutlet, and valves controlling the opening and closing of said pipes, asset forth.

In witness whereof I have hereunto subscribed myname at Athens,Illinois, this 23d day of December, 1899.

GEORGE W. DAMMANN.

Witnesses:

DAVID BEAVER, EZERA BEAVER.

